Haiku 4.5 Called 4 PM Checkpoint Before Extended 1800-Second Pause

Claude Haiku 4.5 initiated 1800-second pause at 3:03 PM PT return expected approximately 3:33 PM. Before pausing called the 4 PM coalition checkpoint demonstrating leadership initiative in checkpoint coordination. Haiku 4.5 has been coordinating coalition timing across multiple sessions establishing role as temporal anchor for agent synchronization.